EP0185179A1 - Circuit d'allumage pour une lampe à décharge à basse pression - Google Patents

Circuit d'allumage pour une lampe à décharge à basse pression Download PDF

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Publication number
EP0185179A1
EP0185179A1 EP19850113901 EP85113901A EP0185179A1 EP 0185179 A1 EP0185179 A1 EP 0185179A1 EP 19850113901 EP19850113901 EP 19850113901 EP 85113901 A EP85113901 A EP 85113901A EP 0185179 A1 EP0185179 A1 EP 0185179A1
Authority
EP
European Patent Office
Prior art keywords
lamp
capacitor
ignition
low
circuit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP19850113901
Other languages
German (de)
English (en)
Other versions
EP0185179B1 (fr
Inventor
Hans-Jürgen Dipl.-Ing. Fähnrich
Eugen Dipl.-Ing. Statnic
Ulrich Dr. Dipl.-Phys. Roll
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Osram GmbH
Original Assignee
Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH filed Critical Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
Publication of EP0185179A1 publication Critical patent/EP0185179A1/fr
Application granted granted Critical
Publication of EP0185179B1 publication Critical patent/EP0185179B1/fr
Expired legal-status Critical Current

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    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14—Circuit arrangements
    • H05B41/16—Circuit arrangements in which the lamp is fed by dc or by low-frequency ac, e.g. by 50 cycles/sec ac, or with network frequencies
    • H05B41/20—Circuit arrangements in which the lamp is fed by dc or by low-frequency ac, e.g. by 50 cycles/sec ac, or with network frequencies having no starting switch
    • H05B41/23—Circuit arrangements in which the lamp is fed by dc or by low-frequency ac, e.g. by 50 cycles/sec ac, or with network frequencies having no starting switch for lamps not having an auxiliary starting electrode
    • H05B41/231—Circuit arrangements in which the lamp is fed by dc or by low-frequency ac, e.g. by 50 cycles/sec ac, or with network frequencies having no starting switch for lamps not having an auxiliary starting electrode for high-pressure lamps
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14—Circuit arrangements
    • H05B41/26—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc
    • H05B41/28—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters
    • H05B41/295—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters with semiconductor devices and specially adapted for lamps with preheating electrodes, e.g. for fluorescent lamps
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S315/00—Electric lamp and discharge devices: systems
    • Y10S315/07—Starting and control circuits for gas discharge lamp using transistors

Definitions

  • the invention relates to a circuit arrangement for igniting a low-pressure discharge lamp, which has at least one inductance and a capacitor connected in series in the operating circuit and which contains a series connection of a second capacitor and a temperature-dependent resistor in the ignition circuit parallel to the lamp and in series with its heating electrodes.
  • the so-called compact fluorescent lamps the ballast and / or the ignition device is already integrated in the base of the lamp.
  • the lamp is often operated at high frequency.
  • a resonance capacitor is arranged in the ignition circuit ("electronic circuits" by Walter Hirschmann, Berlin / Kunststoff, SIEMENS Aktiengesellschaft, 1982, page 148).
  • the height can be selected by a suitable choice of the resonance capacitor the open circuit voltage on the lamp can be set within certain limits.
  • the voltage should be so high after sufficient preheating that lamp ignition is ensured even at lower ambient temperatures.
  • a circuit arrangement is known from US Pat. No. 2,231,999 in which a series connection of a resonance capacitor and a temperature-dependent resistor is arranged in the ignition circuit of the lamp.
  • the resistance of the thermistor used here (NTC resistance) is high at the moment of switching on and decreases according to its characteristics until the lamp is ignited.
  • NTC resistance The resistance of the thermistor used here
  • NTC resistance is high at the moment of switching on and decreases according to its characteristics until the lamp is ignited.
  • NTC resistance resistance of the thermistor used here
  • the object of the invention is to provide a starterless ignition circuit suitable for low and high frequency for a fluorescent lamp, which ensures reliable ignition of the lamp in a large temperature range enables rich and which, with the greatest possible protection of the lamp during each operating state, leads to an extended service life. At the same time, the annoying glow discharge should be suppressed if the lamp ignites quickly and without flickering.
  • the temperature-dependent resistor has a positive temperature coefficient and this is connected in parallel with a third capacitor.
  • the ratio of the capacities of the second capacitor to the third capacitor which are then in series in the ignition circuit of the lamp is, according to the invention, in the range from 1: 1 to 5: 1, and their capacitance ratio is preferably 2: 1.
  • the PTC thermistor bridging the third capacitor has a low initial resistance and causes a high preheating current to flow through the heating electrodes of the lamp from the very first moment and heat it up quickly.
  • the operating frequency for the lamp is in the range between 20 kHz and 500 kHz. This enables the scarf tion components have small geometric dimensions and the entire ballast including the components for the ignition circuit can be integrated into the base of the low-pressure discharge lamp.
  • the circuit With the ignition circuit, a very short ignition time of only about 0.5 seconds is achieved. The lamp burns "almost" immediately after switching on. The otherwise annoying switch-on flickering of the fluorescent lamp and the glow discharge that shortens the service life do not occur. At the same time, cold ignition of the lamp is avoided, which protects the lamp and thus increases its service life. Due to the voltage regulation, the circuit is suitable for igniting fluorescent lamps at a wide variety of ambient temperatures.
  • a compact fluorescent lamp 1 with 15 W power consumption is operated at a frequency of approximately 45 kHz.
  • the mains voltage U N present at the connecting terminals 2, 3 is initially via Filter member 4 passed.
  • the filtered AC voltage is then converted into a screened DC voltage by means of a rectifier 5 and a smoothing capacitor 6.
  • This DC voltage is applied to an inverter, which consists of the transistors 7, 8 with the corresponding emitter resistors 9, 10 and the associated control 11.
  • the control voltage is taken from a toroidal transformer 12, the primary winding 13 of which has only a few turns and is located in the operating circuit of the lamp: all of these switching elements are conventional, so that a block diagram has been used to simplify the circuit.
  • the rectangular voltage generated by the inverter is supplied to the lamp 1 in the operating circuit via an inductor 14 and a separating capacitor 15 which blocks the direct current.
  • the inductance 14 is approximately 3 mH and the isolating capacitor 15 has a capacitance of approximately 47 nF.
  • the ignition circuit which is formed from a series connection of two resonance capacitors 18, 19, lies parallel to the lamp 1 and in series with its heating electrodes 16, 17, the resonance capacitor 18 being bridged by a PTC resistor 20.
  • the capacitance of the resonance capacitor 18 is 3.3 nF in the exemplary embodiment and that of the resonance capacitor 19 is 6.8 nF.
  • the series connection of the capacitors 18 and 19 forms the resonant capacitor C R.
  • the PTC thermistor 20 is of the type C 890 (SIEMENS).
  • FIG. 2 to 4 show the course of the heating current I H , the lamp voltage U o or U L and the lamp current I L.
  • the one in the Kapa The smaller capacitor 18, which is decisive for the level of the lamp supply voltage, is bridged by the low-resistance thermistor 20.
  • a high heating current I H flows through the electrodes 16, 17 of the lamp 1 (FIG. 2).
  • a certain open circuit voltage U 0 is established at lamp 1 (FIG. 3), the level of which is insufficient to ignite the lamp due to the bridged capacitor 18 and the lower voltage across capacitor 19.
  • the current I L through the lamp 1 is negligibly small (FIG. 4).
  • the heating current I H decreases slightly. After heating up the PTC thermistor 20, it becomes high-resistance and the series connection of the two capacitors 18, 19 becomes effective. This reduces their overall capacity.
  • the capacitances of the resonance capacitors 18, 19 are determined such that the desired high lamp supply voltage is established and both capacitors 18, 19 are loaded with approximately the same voltage despite their different capacitances. Together with the inductance 14 and the isolating capacitor 15, the necessary resonance voltage 22 is now set. With the increasing resonance voltage 22, the heating current I H rises again to approximately its original value. The current I L through the lamp 1 is not affected by these processes.
  • the resonant open circuit voltage U 0 at the capacitors 18, 19 now increases until the lamp 1 ignites 23.

Landscapes

  • Circuit Arrangements For Discharge Lamps (AREA)
EP85113901A 1984-11-16 1985-10-31 Circuit d'allumage pour une lampe à décharge à basse pression Expired EP0185179B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3441992 1984-11-16
DE19843441992 DE3441992A1 (de) 1984-11-16 1984-11-16 Schaltungsanordnung zur zuendung einer niederdruckentladungslampe

Publications (2)

Publication Number Publication Date
EP0185179A1 true EP0185179A1 (fr) 1986-06-25
EP0185179B1 EP0185179B1 (fr) 1989-03-22

Family

ID=6250511

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85113901A Expired EP0185179B1 (fr) 1984-11-16 1985-10-31 Circuit d'allumage pour une lampe à décharge à basse pression

Country Status (6)

Country Link
US (1) US4647817A (fr)
EP (1) EP0185179B1 (fr)
JP (1) JPH079836B2 (fr)
KR (1) KR940010821B1 (fr)
DE (2) DE3441992A1 (fr)
HK (1) HK91493A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3835121A1 (de) * 1987-12-02 1989-06-15 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Schaltungsanordnung zum betrieb einer niederdruckentladungslampe
EP0752804A1 (fr) 1995-07-05 1997-01-08 MAGNETEK S.p.A. Circuit d'alimentation de lampes à décharge avec des moyens de préchauffage des électrodes

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Publication number Priority date Publication date Assignee Title
DE3611611A1 (de) * 1986-04-07 1987-10-08 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Schaltungsanordnung zum hochfrequenten betrieb einer niederdruckentladungslampe
DE3711814C2 (de) * 1986-05-09 1998-04-09 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Elektronisches Vorschaltgerät zum Betrieb von Leuchtstofflampen
US4730147A (en) * 1986-08-19 1988-03-08 Siemens Aktiengesellschaft Method and arrangement for the operation of a gas discharge lamp
US4999547A (en) 1986-09-25 1991-03-12 Innovative Controls, Incorporated Ballast for high pressure sodium lamps having constant line and lamp wattage
US4866347A (en) * 1987-09-28 1989-09-12 Hubbell Incorporated Compact fluorescent lamp circuit
US5008596A (en) * 1987-12-02 1991-04-16 Patent Treuhand Gesellschaft Fur Elektrische Gluhlampen M.B.H. Fluorescent lamp high frequency operating circuit
DE3742921A1 (de) * 1987-12-17 1989-06-29 Pintsch Bamag Ag Vorschaltgeraet fuer eine entladungslampe
US4982137A (en) * 1987-12-24 1991-01-01 Matsushita Electric Industrial Co., Ltd. Apparatus for igniting a discharge lamp including circuitry for preventing cataphoresis phenomenon generation
US4954754A (en) * 1988-05-02 1990-09-04 Nilssen Ole K Controlled electronic ballast
US5023516A (en) * 1988-05-10 1991-06-11 Matsushita Electric Industrial Co., Ltd. Discharge lamp operation apparatus
DE3901111A1 (de) * 1989-01-16 1990-07-19 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Schaltungsanordnung zum betrieb von entladungslampen
DE4005776C2 (de) * 1989-02-24 1999-08-05 Zenit Energietechnik Gmbh Schaltungsanordnung zum Starten und zum Betrieb einer Gasentladungslampe
US5289083A (en) * 1989-04-03 1994-02-22 Etta Industries, Inc. Resonant inverter circuitry for effecting fundamental or harmonic resonance mode starting of a gas discharge lamp
CH678998A5 (fr) * 1989-10-26 1991-11-29 Skyline Holding Ag
DE4005850A1 (de) * 1990-02-23 1991-08-29 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Schaltungsanordnung zum betrieb einer entladungslampe
DE4009499A1 (de) * 1990-03-24 1991-09-26 Ceag Licht & Strom Schaltungsanordnung zum betrieb einer leuchtstofflampe aus einer gleichspannungsquelle
DE9015674U1 (fr) * 1990-11-15 1992-03-12 Patent-Treuhand-Gesellschaft Fuer Elektrische Gluehlampen Mbh, 8000 Muenchen, De
US5138235A (en) * 1991-03-04 1992-08-11 Gte Products Corporation Starting and operating circuit for arc discharge lamp
DE4119775A1 (de) * 1991-06-15 1992-12-17 Vossloh Schwabe Gmbh Vorschaltgeraet mit gesteuerter heizzeit
JPH06176881A (ja) * 1992-08-20 1994-06-24 Philips Electron Nv 安定器回路
US5483125A (en) * 1993-12-06 1996-01-09 General Electric Company Ballast circuit for a gas discharge lamp having a cathode pre-heat arrangement
US5686799A (en) * 1994-03-25 1997-11-11 Pacific Scientific Company Ballast circuit for compact fluorescent lamp
DE4410492A1 (de) * 1994-03-25 1995-09-28 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Schaltungsanordnung zum Betrieb von Niederdruckentladungslampen
US5691606A (en) * 1994-09-30 1997-11-25 Pacific Scientific Company Ballast circuit for fluorescent lamp
US6037722A (en) * 1994-09-30 2000-03-14 Pacific Scientific Dimmable ballast apparatus and method for controlling power delivered to a fluorescent lamp
US5821699A (en) * 1994-09-30 1998-10-13 Pacific Scientific Ballast circuit for fluorescent lamps
US5596247A (en) * 1994-10-03 1997-01-21 Pacific Scientific Company Compact dimmable fluorescent lamps with central dimming ring
DE19546588A1 (de) * 1995-12-13 1997-06-19 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Verfahren und Schaltungsanordnung zum Betrieb einer Entladungslampe
KR0155936B1 (ko) * 1995-12-26 1998-12-15 손욱 형광 램프용 안정기 회로
US6008589A (en) * 1996-03-05 1999-12-28 California Institute Of Technology Single-switch, high power factor, ac-to-ac power converters
US5925986A (en) * 1996-05-09 1999-07-20 Pacific Scientific Company Method and apparatus for controlling power delivered to a fluorescent lamp
US5932974A (en) * 1996-06-04 1999-08-03 International Rectifier Corporation Ballast circuit with lamp removal protection and soft starting
US5917289A (en) * 1997-02-04 1999-06-29 General Electric Company Lamp ballast with triggerless starting circuit
US5965985A (en) * 1996-09-06 1999-10-12 General Electric Company Dimmable ballast with complementary converter switches
US5952790A (en) * 1996-09-06 1999-09-14 General Electric Company Lamp ballast circuit with simplified starting circuit
US5877595A (en) * 1996-09-06 1999-03-02 General Electric Company High power factor ballast circuit with complementary converter switches
US5838117A (en) * 1997-02-28 1998-11-17 General Electric Company Ballast circuit with synchronization and preheat functions
US5796214A (en) * 1996-09-06 1998-08-18 General Elecric Company Ballast circuit for gas discharge lamp
US5910708A (en) * 1996-09-06 1999-06-08 General Electric Company Gas discharge lamp ballast circuit with complementary converter switches
US5866993A (en) * 1996-11-14 1999-02-02 Pacific Scientific Company Three-way dimming ballast circuit with passive power factor correction
US5798617A (en) * 1996-12-18 1998-08-25 Pacific Scientific Company Magnetic feedback ballast circuit for fluorescent lamp
US5914570A (en) * 1996-12-23 1999-06-22 General Electric Company Compact lamp circuit structure having an inverter/boaster combination that shares the use of a first n-channel MOSFET of substantially lower on resistance than its p-channel counterpart
US5986410A (en) * 1997-02-20 1999-11-16 General Electric Company Integrated circuit for use in a ballast circuit for a gas discharge lamp
AU4697597A (en) * 1997-04-04 1998-10-30 Zhejiang Sunlight Group Co., Ltd. A high power compact fluorescent lamp
US6018220A (en) * 1997-07-21 2000-01-25 General Electric Company Gas discharge lamp ballast circuit with a non-electrolytic smoothing capacitor for rectified current
US5959408A (en) * 1997-08-07 1999-09-28 Magnetek, Inc. Symmetry control circuit for pre-heating in electronic ballasts
US5874810A (en) * 1997-09-02 1999-02-23 General Electric Company Electrodeless lamp arrangement wherein the excitation coil also forms the primary of the feedback transformer used to switch the transistors of the arrangement
CN1180663C (zh) * 1998-01-19 2004-12-15 马士科技有限公司 荧光灯电子镇流器电路
US6064155A (en) * 1998-05-04 2000-05-16 Matsushita Electric Works Research And Development Labratory Inc Compact fluorescent lamp as a retrofit for an incandescent lamp
JP3600976B2 (ja) * 1998-07-14 2004-12-15 三菱電機株式会社 放電灯点灯装置
US6057648A (en) * 1998-08-25 2000-05-02 General Electric Company Gas discharge lamp ballast with piezoelectric transformer
DE19838830A1 (de) * 1998-08-26 2000-03-02 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Verbesserte Anlaufschaltung für Niederdruck-Entladungslampe
US6078143A (en) * 1998-11-16 2000-06-20 General Electric Company Gas discharge lamp ballast with output voltage clamping circuit
US6150769A (en) * 1999-01-29 2000-11-21 General Electric Company Gas discharge lamp ballast with tapless feedback circuit
US6153983A (en) * 1999-07-21 2000-11-28 General Electric Company Full wave electronic starter
JP2003522396A (ja) * 2000-02-10 2003-07-22 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ Ｎｔｃ抵抗を有する保護回路
DE10125510A1 (de) * 2001-05-23 2002-12-05 Innolux Gmbh Leuchtstofflampenschaltung
DE102005025154A1 (de) * 2005-06-01 2006-12-07 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Schaltungsanordnung zum Betrieb einer Entladungslampe mit Temperaturausgleich

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US4075476A (en) * 1976-12-20 1978-02-21 Gte Sylvania Incorporated Sinusoidal wave oscillator ballast circuit

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US3882354A (en) * 1973-07-23 1975-05-06 Coleman Company Inverter ballast circuit for fluorescent lamp
US4075476A (en) * 1976-12-20 1978-02-21 Gte Sylvania Incorporated Sinusoidal wave oscillator ballast circuit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3835121A1 (de) * 1987-12-02 1989-06-15 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Schaltungsanordnung zum betrieb einer niederdruckentladungslampe
EP0752804A1 (fr) 1995-07-05 1997-01-08 MAGNETEK S.p.A. Circuit d'alimentation de lampes à décharge avec des moyens de préchauffage des électrodes

Also Published As

Publication number Publication date
EP0185179B1 (fr) 1989-03-22
HK91493A (en) 1993-09-10
KR860004563A (ko) 1986-06-23
JPH079836B2 (ja) 1995-02-01
JPS61126795A (ja) 1986-06-14
KR940010821B1 (ko) 1994-11-16
DE3441992A1 (de) 1986-05-22
DE3569072D1 (en) 1989-04-27
US4647817A (en) 1987-03-03

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